Synthesis and Photophysical Properties of a Hyperbranched Trimethylsilyl Substituted Poly(phenylene vinylene) Derivative

被引：0
作者：
Kim, Kyeongmin [1 ]
Ahn, Taek [1 ]
机构：
[1] Kyungsung Univ, Dept Chem, Busan 48434, South Korea
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2020年 / 20卷 / 08期
基金：
新加坡国家研究基金会;
关键词：
Hyperbranched Polymer; Wittig Polycondensation; Photoluminescence; ELECTROLUMINESCENCE; POLYMERS; DEVICES; ROUTE;
D O I：
10.1166/jnn.2020.17820
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel trimethylsilyl substituted hyperbranched conjugated poly(phenylene vinylene) (Hyper-PBTMS-PPV) was synthesized through the Wittig polycondensation polymerization. Hyper-PBTMS-PPV has good solubility in common organic solvents and showed good thermal stability up to 402 degrees C with less than 5 wt% weight loss. The photophysical properties of Hyper-PBTMS-PPV film are investigated and compared with trimethylsilyl-containing linear poly(1,4-phenylene vinylene) (Linear-PBTMS-PPV). An absorption maximum of Hyper-PBTMS-PPV film was determined at 335 nm which was far blue-shifted than that of Linear-PBTMS-PPV (380 nm). Hyper-PBTMS-PPV film showed blue photoluminescence (PL) peak at 449 nm. In addition, Hyper-PBTMS-PPV film exhibited almost no long wavelength emission peaks even the film was annealed at 120 degrees C for 30 min in air condition. High PL efficiency (Phi(film) = 0.80) and no aggregate or excimer emission of Hyper-PBTMS-PPV film are due to the inhibition of intramolecular or intermolecular interaction by the introduction of the hyperbranched network into the trimethylsilyl-containing poly(phenylene vinylene) backbone.
引用
收藏
页码：4990 / 4993
页数：4
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